Cisco Catalyst 3750 User Manual

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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
ip dhcp snooping information option format remote-id
ip dhcp snooping information option format remote-id
Use the ip dhcp snooping information option format remote-id global configuration command to
configure the option-82 remote-ID suboption. Use the no form of this command to configure the default
remote-ID suboption.
ip dhcp snooping information option format remote-id [string ASCII-string | hostname]
no ip dhcp snooping information option format remote-id
Syntax Description
Defaults The switch MAC address is the remote ID.
Command Modes Global configuration
Command History
Usage Guidelines You must globally enable DHCP snooping by using the ip dhcp snooping global configuration
command for any DHCP snooping configuration to take effect.
When the option-82 feature is enabled, the default remote-ID suboption is the switch MAC address. This
command allows you to configure either the switch hostname or a string of up to 63 ASCII characters
(but no spaces) to be the remote ID.
Note If the hostname exceeds 63 characters, it will be truncated to 63 characters in the remote-ID
configuration.
Examples This example shows how to configure the option- 82 remote-ID suboption:
Switch(config)# ip dhcp snooping information option format remote-id hostname
You can verify your settings by entering the show ip dhcp snooping user EXEC command.
string ASCII-string Specify a remote ID, using from 1 to 63 ASCII characters (no
spaces).
hostname Specify the switch hostname as the remote ID.
Release Modification
12.2(25)SEE This command was introduced.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing